300-360 · Question #105
You deploy a wireless network for a common area located outside of a student dorm by using patch antennas. Students report weak signals in specific locations of the coverage area. Which option is a…
The correct answer is D. Bluetooth interference. Bluetooth interference is a possible cause of weak signals in specific locations when patch antennas are deployed outdoors near a student dorm. Bluetooth devices (headphones, speakers, gaming controllers, phones) are extremely common among students and operate in the same 2.4…
Question
You deploy a wireless network for a common area located outside of a student dorm by using patch antennas. Students report weak signals in specific locations of the coverage area. Which option is a possible cause of the issue?
Options
- Aneighboring buildings
- Bvehicles
- Ctrees
- DBluetooth interference
How the community answered
(43 responses)- A5% (2)
- B2% (1)
- C14% (6)
- D79% (34)
Explanation
Bluetooth interference is a possible cause of weak signals in specific locations when patch antennas are deployed outdoors near a student dorm. Bluetooth devices (headphones, speakers, gaming controllers, phones) are extremely common among students and operate in the same 2.4 GHz ISM band as 802.11b/g/n Wi-Fi. High concentrations of Bluetooth devices in particular areas can cause co-channel interference, degrading Wi-Fi signal performance in those localized zones. While trees (C) and neighboring buildings (A) cause physical RF attenuation and can create dead spots, they represent relatively static environmental factors. Vehicles (B) are transient obstacles. In a student dorm scenario, Bluetooth interference is the most operationally relevant and exam-targeted cause of localized signal degradation.
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